Spring seat



Ap 1929- B. POVDIEBRAD SPRING SEAT Filed Sept. 15, 1924 2 Sheets-Sheet I Inventor:

April 9, 1929- B. PO'D!EBRIAD SPRING SEAT Filed Sept. 15,. 1924 2 Sheets-Sheet 2 Invenio Patented Apr. 9, 1929.

UNITED STATES BERNARD PODI'EBRAD, OF PAR-IS, FRANCE.

SPRING SEAT.

Application filed September 15, 1924, Serial No. 737,869, and in France September 17, 1923.

This invention has for its object a seat more particularly for use as a folding or emergency seat for vehicles and which possesscs the advantage of providing a double system of cushioning springs assuring perfect comfort for the traveller. This elastic system can advantageously be utilized to constitute a rear seat for motor vehicles, a saddle or seat for velocipedes etc.

The seat consists essentially of two-f 'ames,

' the lower one forming a surface of support and the upper one serving to support the seat proper, which are connected together at the sides by crossed jointed levers, the opening of which regulated by a double set of horizontal springs carried respectively, by the upper and lower frames. lVith this system of mounting the springs of the frames directly support the weight of the traveller and extend themselves more or less under the shocks to which the vehicle is subjected in a manner assuring perfect suspension under all conditions.

The improved seat may be fixed or movable; in the case where it serves as an emergcncy seat it will by preference be. made to fold.

The annexed drawing shows by way of ex ample, one form of a folding removable seat in accordance with the invention.

Figure 1 is a front view of the seat in the open position.

Figure 2 is a side view and Figure 3 a vertical section of the seat.

Figure is a side view-of the seat folded.

Fig. 5 is a vertical section of a modification of the seat in the open position and.

. Fig. (3 shows in plan the upper frame of this modification. v

a is the seat proper, which can be advantageously stuffed and upholstered, and supported by an upper frame formed of two angle-bars 7) connected by a transverse rear axle c. On the two ends of this axle are jointed levers cl also jointed together by an axle e midway between their ends. On this axic e are jointed two other levers f hinged at theielower ends to an axle g forming part of the lower frame of the seat. The lower frame comprises, moreover, longitudinal angle-bars in united by a cross-bar 2'.

On the back axle c of the upper frame are also jointed uprights supporting the seatback, which, like the scat proper, can be advantageously stuffed or upholstered. The

lower ends j of the uprights are bent as shown in Figures 1 and 3 in order to limit the inclination of the back towards the rear.

In the construction shown, the front ends of the crossed levers d and f terminate in a bent part which may engage in the hooks l at the ends of the slide-bars or carried by the angle-bars 7i and Z) of the upper and lower frames and capable of-sliding on the latter. For example, as shown, the slide bars m may be furnished with slots in which engage setscrews 11 fixed to the angle-bars of the frames. To the rear extremities of the slides m are attached the ends of springs 0, the other ends of which are connected-to the fixed axles c and g, respectively.

The cross-bar of the lower frame can be utilized to [ix the seat on the floor 9 of the vehicle, for example, by means of a bolt 2) fixed to the tloor and permitting orientation of the seat.

1t is to be understood that the seat being in the extended or open position, Figures 1 to S, the weight of the occupant will extend the four cushion springs 0 so as to assure an elastic suspension of the said weight, thus guarding the occupant against shocks due to inequalities of the roads.

To fold the seat, the hooks Z of the upper and lower slides are disengaged from the front ends of the crossed levers (Z and f, so that the seat can be folded into the position shown in Figure a. In this folded position the seat can be easily placed in a receptacle in the vehicle.

The extension of the seat is obtained bv raising the seat and the back and the free ends of the crossed levers will automatically engage with the hooks of the slides.

The system of mounting, just described, is applicable to movable seats of all kinds and shapes with or without a back and also to fixed seats or folding seats fixed to a vehicle body-work and even to cushions for tixcd seats.

It is also applicable to seats for any horsedrawn or automobile vehicles, saddles for cycles and rear seats for motors etc.

Claims 1. An elastic seatcomprising upper and lower frame members connected together by a system of crossed jointed levers. a seat proper mounted on said upper frame member, slides having hooks at one end and extensible springs at the other end for connecting the upper ends of said levers, and similar means hers, a slide provided with a hook at one end for connecting the lower ends of said levers. for engaging the free end of each of said 2. An elastic seat comprising upper and levers said slides being secured to an extensi- 1 lower frame members, a seat proper mount ble spring, said spring and slide being adapt- 5 ed on said upper frame member, a system of ed to connect the free end of one lever with crossed jointed levers, each being pivotally the pivoted end of the adjacent crossed lever. mounted at one end to one of said frame mem- BERNARD PODIEBRAD. 

